481238381 has 8 divisors (see below), whose sum is σ = 518500920. Its totient is φ = 444010752.

The previous prime is 481238369. The next prime is 481238419. The reversal of 481238381 is 183832184.

It can be written as a sum of positive squares in 4 ways, for example, as 1190281 + 480048100 = 1091^2 + 21910^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-481238381 is a prime.

It is a super-2 number, since 2×481238381² = 463180758695002322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481238081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24665 + ... + 39633.

It is an arithmetic number, because the mean of its divisors is an integer number (64812615).

Almost surely, 2^481238381 is an apocalyptic number.

It is an amenable number.

481238381 is a deficient number, since it is larger than the sum of its proper divisors (37262539).

481238381 is a wasteful number, since it uses less digits than its factorization.

481238381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17455.

The product of its digits is 36864, while the sum is 38.

The square root of 481238381 is about 21937.1461452943. The cubic root of 481238381 is about 783.6462968963.

The spelling of 481238381 in words is "four hundred eighty-one million, two hundred thirty-eight thousand, three hundred eighty-one".